For breeders in the USA or UK:
Please mind that most longcoated GSD's in Europe are registered as Old Style GSD/Altdeutscher Schäferhund due to their historical background. If you insist on breeding within AKC (USA) or KC (UK) only, it is still not possible to register an Old Style GSD puppy with one of those 2 Kennelclubs, regardless of both breeds being genetically the same dog.